package com.explorati.tree.LeetCode257.BinaryTreePath;

import java.util.ArrayList;
import java.util.List;

/**
 * 257. Binary Tree Paths
 * 
 * @author explorati
 *
 */
public class Solution1 {
	public class TreeNode {
		int val;
		TreeNode left;
		TreeNode right;

		TreeNode(int x) {
			val = x;
		}
	}

	List<String> res;

	public List<String> binaryTreePaths(TreeNode root) {
		String str = "";
		if (root == null) {
			return res;
		}
		res = new ArrayList<>();
		treePathsHelper(root, str);
		return res;
	}

	public static void treePathsHelper(TreeNode node, String path) {

	}
}
